Programming Language and compiler
Benchmarks

D VS Ruby benchmarks

Current benchmark data was generated on Thu May 01 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1779ms 14ms 312.5MB 1757ms 30ms ldc2 1.40.1
d 1.d 3014ms 3.4ms 315.0MB 3180ms 50ms dmd 2.111.0
ruby 1.rb 4679ms 84ms 150.6MB 4570ms 97ms ruby/yjit 3.4.3
ruby 1.rb timeout 0.0ms 70.0MB 4950ms 40ms ruby 3.4.3
ruby 1.rb timeout 0.0ms 780.8MB 6557ms 723ms truffleruby 24.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 164ms 0.4ms 207.9MB 130ms 20ms ldc2 1.40.1
d 1.d 263ms 2.3ms 210.0MB 230ms 20ms dmd 2.111.0
ruby 1.rb 481ms 3.0ms 20.3MB 460ms 10ms ruby/yjit 3.4.3
ruby 1-m.rb 537ms 62ms 414.1MB 1070ms 150ms truffleruby 24.2.1
ruby 1.rb 931ms 3.2ms 19.5MB 910ms 7ms ruby 3.4.3

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1461ms 14ms 63.8MB 1383ms 63ms ruby/yjit 3.4.3
ruby 1.rb 1891ms 53ms 63.0MB 1813ms 63ms ruby 3.4.3
d 1.d timeout 0.0ms 17.8MB 4967ms 20ms dmd 2.111.0
d 1.d timeout 0.0ms 16.9MB 4967ms 20ms ldc2 1.40.1
ruby 1.rb timeout 0.0ms 342.0MB 4683ms 1473ms truffleruby 24.2.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 156ms 2.7ms 25.8MB 127ms 13ms ruby/yjit 3.4.3
ruby 1.rb 181ms 2.9ms 25.0MB 153ms 13ms ruby 3.4.3
d 1.d 1032ms 3.6ms 12.3MB 1013ms 10ms ldc2 1.40.1
d 1.d 1375ms 5.4ms 12.2MB 1357ms 10ms dmd 2.111.0
ruby 1.rb timeout 0.0ms 351.9MB 4730ms 1453ms truffleruby 24.2.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2553ms 5.1ms 8.1MB 2537ms 0ms ldc2 1.40.1
d 1.d 2867ms 3.5ms 10.5MB 2853ms 3ms dmd 2.111.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 442ms 1.8ms 8.1MB 430ms 0ms ldc2 1.40.1
d 1.d 519ms 3.3ms 10.4MB 510ms 0ms dmd 2.111.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 391ms 24ms 3.0MB 1430ms 0ms ldc2 1.40.1
d 2-im.d 1113ms 7.1ms 3.0MB 4320ms 0ms ldc2 1.40.1
d 1-i.d 1485ms 0.7ms 2.8MB 1480ms 0ms ldc2 1.40.1
d 1.d 3141ms 18ms 2.9MB 3133ms 0ms ldc2 1.40.1
d 2-i.d 3237ms 0.6ms 2.9MB 3230ms 0ms ldc2 1.40.1
d 1.d 3539ms 9.8ms 4.6MB 3530ms 0ms dmd 2.111.0
d 1-im.d 4480ms 46ms 4.9MB 17513ms 7ms dmd 2.111.0
d 1-i.d timeout 0.0ms 4.5MB 4990ms 0ms dmd 2.111.0
d 2-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.111.0
d 2-im.d timeout 0.0ms 4.9MB 19827ms 10ms dmd 2.111.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 37ms 0.7ms 3.1MB 110ms 0ms ldc2 1.40.1
d 2-im.d 97ms 0.9ms 3.0MB 350ms 0ms ldc2 1.40.1
d 1-i.d 123ms 0.4ms 2.8MB 117ms 0ms ldc2 1.40.1
d 2-i.d 268ms 1.4ms 2.9MB 260ms 0ms ldc2 1.40.1
d 1.d 270ms 16ms 2.9MB 260ms 0ms ldc2 1.40.1
d 1.d 299ms 2.2ms 4.6MB 290ms 0ms dmd 2.111.0
d 1-im.d 378ms 3.7ms 4.8MB 1427ms 0ms dmd 2.111.0
d 2-im.d 547ms 15ms 4.9MB 2003ms 0ms dmd 2.111.0
d 1-i.d 898ms 12ms 4.5MB 887ms 0ms dmd 2.111.0
d 2-i.d 1375ms 11ms 4.5MB 1363ms 0ms dmd 2.111.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 155ms 1.8ms 2.9MB 143ms 0ms ldc2 1.40.1
d 1.d 641ms 1.0ms 4.8MB 630ms 0ms dmd 2.111.0
ruby 6.rb 2030ms 11ms 23.0MB 2007ms 10ms ruby/yjit 3.4.3
ruby 6-m.rb 2048ms 68ms 387.2MB 5343ms 347ms truffleruby 24.2.1
ruby 6.rb 3729ms 21ms 22.4MB 3707ms 10ms ruby 3.4.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 18ms 1.4ms 2.9MB 10ms 0ms ldc2 1.40.1
d 1.d 68ms 1.6ms 4.8MB 60ms 0ms dmd 2.111.0
ruby 6.rb 257ms 3.2ms 15.0MB 240ms 7ms ruby/yjit 3.4.3
ruby 6.rb 431ms 3.1ms 14.4MB 410ms 7ms ruby 3.4.3
ruby 6-m.rb 771ms 87ms 365.8MB 1910ms 180ms truffleruby 24.2.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1.6ms 0.1ms 3.0MB 0ms 0ms ldc2 1.40.1
d 1.d 2.0ms 0.2ms 5.1MB 0ms 0ms dmd 2.111.0
ruby 1.rb 34ms 0.6ms 140.7MB 12ms 24ms truffleruby 24.2.1
ruby 1.rb 50ms 0.5ms 13.0MB 36ms 4ms ruby/yjit 3.4.3
ruby 1.rb 52ms 1.7ms 12.8MB 38ms 0ms ruby 3.4.3

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 56ms 0.3ms 15.6MB 60ms 10ms ldc2 1.40.1
d 2.d 243ms 1.7ms 22.5MB 243ms 7ms dmd 2.111.0
ruby 1.rb 247ms 2.4ms 29.9MB 220ms 10ms ruby/yjit 3.4.3
ruby 1.rb 249ms 4.9ms 28.5MB 217ms 17ms ruby 3.4.3
ruby 1-m.rb 4260ms 110ms 489.7MB 11213ms 330ms truffleruby 24.2.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 451ms 1.3ms 139.8MB 410ms 47ms ldc2 1.40.1
ruby 1.rb 2070ms 4.8ms 135.1MB 1983ms 73ms ruby/yjit 3.4.3
ruby 1.rb 2088ms 5.1ms 134.1MB 2000ms 77ms ruby 3.4.3
d 2.d 2563ms 1.7ms 158.3MB 2573ms 43ms dmd 2.111.0
ruby 1.rb timeout 0.0ms 649.0MB 13303ms 360ms truffleruby 24.2.1

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 663ms 47ms 56.3MB 2020ms 10ms ldc2 1.40.1
d 1-m.d 1909ms 21ms 50.0MB 5543ms 10ms dmd 2.111.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 83ms 2.5ms 37.4MB 237ms 13ms ldc2 1.40.1
d 1-m.d 203ms 17ms 41.7MB 617ms 17ms dmd 2.111.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 129ms 1.7ms 6.1MB 120ms 0ms ldc2 1.40.1
d 1.d 175ms 2.3ms 8.1MB 167ms 3ms dmd 2.111.0
ruby 1.rb 336ms 3.0ms 13.5MB 320ms 7ms ruby/yjit 3.4.3
ruby 1.rb 528ms 0.6ms 12.9MB 510ms 0ms ruby 3.4.3
ruby 1-m.rb 649ms 12ms 361.2MB 1150ms 143ms truffleruby 24.2.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 378ms 3.3ms 5.9MB 367ms 17ms ldc2 1.40.1
d 1.d 511ms 1.5ms 7.9MB 497ms 13ms dmd 2.111.0
ruby 1.rb 891ms 5.7ms 13.5MB 873ms 3ms ruby/yjit 3.4.3
ruby 1-m.rb 1218ms 28ms 399.4MB 1703ms 157ms truffleruby 24.2.1
ruby 1.rb 1472ms 6.0ms 12.9MB 1453ms 3ms ruby 3.4.3

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 57ms 1.9ms 6.1MB 50ms 0ms ldc2 1.40.1
d 1.d 78ms 1.6ms 8.2MB 70ms 0ms dmd 2.111.0
ruby 1.rb 194ms 4.2ms 13.4MB 177ms 7ms ruby/yjit 3.4.3
ruby 1.rb 288ms 3.8ms 12.8MB 270ms 3ms ruby 3.4.3
ruby 1-m.rb 516ms 39ms 354.9MB 993ms 137ms truffleruby 24.2.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 295ms 0.4ms 6.7MB 283ms 0ms ldc2 1.40.1
d 1.d 2114ms 7.3ms 9.3MB 2103ms 0ms dmd 2.111.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 15ms 0.2ms 3.0MB 10ms 0ms ldc2 1.40.1
d 1.d 94ms 0.8ms 5.0MB 87ms 0ms dmd 2.111.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 967ms 3.5ms 312.8MB 940ms 33ms ldc2 1.40.1
d 1.d 1868ms 4.0ms 314.4MB 1990ms 47ms dmd 2.111.0
ruby 1-m.rb 4011ms 237ms 549.1MB 10167ms 373ms truffleruby 24.2.1
ruby 1.rb timeout 0.0ms 93.5MB 4940ms 50ms ruby 3.4.3
ruby 1.rb timeout 0.0ms 97.2MB 4940ms 50ms ruby/yjit 3.4.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 204ms 1.2ms 312.5MB 170ms 27ms ldc2 1.40.1
d 1.d 363ms 1.3ms 314.8MB 330ms 30ms dmd 2.111.0
ruby 1-m.rb 2063ms 65ms 556.4MB 5307ms 257ms truffleruby 24.2.1
ruby 1.rb 3317ms 15ms 38.3MB 3287ms 17ms ruby/yjit 3.4.3
ruby 1.rb 4340ms 9.9ms 37.6MB 4307ms 20ms ruby 3.4.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 362ms 1.3ms 2.9MB 350ms 0ms ldc2 1.40.1
d 2.d 362ms 0.9ms 2.9MB 350ms 0ms ldc2 1.40.1
d 1.d 680ms 3.0ms 4.8MB 670ms 0ms dmd 2.111.0
ruby 2.rb 820ms 8.8ms 310.7MB 1043ms 117ms truffleruby 24.2.1
d 2.d 2030ms 3.5ms 4.8MB 2023ms 0ms dmd 2.111.0
ruby 2.rb timeout 0.0ms 12.8MB 4987ms 3ms ruby 3.4.3
ruby 2.rb timeout 0.0ms 13.5MB 4983ms 0ms ruby/yjit 3.4.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 38ms 0.3ms 2.9MB 30ms 0ms ldc2 1.40.1
d 1.d 39ms 0.3ms 2.9MB 30ms 0ms ldc2 1.40.1
d 1.d 72ms 0.8ms 4.8MB 60ms 0ms dmd 2.111.0
d 2.d 207ms 0.5ms 4.6MB 200ms 0ms dmd 2.111.0
ruby 2-m.rb 312ms 9.0ms 309.6MB 540ms 117ms truffleruby 24.2.1
ruby 2.rb 1025ms 2.6ms 13.5MB 1010ms 0ms ruby/yjit 3.4.3
ruby 2.rb 2856ms 28ms 12.8MB 2840ms 0ms ruby 3.4.3

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 310ms 2.0ms 43.5MB 293ms 3ms ldc2 1.40.1
d 1.d 360ms 4.2ms 79.3MB 343ms 7ms dmd 2.111.0
d 2.d 843ms 1.6ms 47.5MB 827ms 3ms ldc2 1.40.1
d 2.d 1170ms 1.5ms 51.5MB 1150ms 7ms dmd 2.111.0
ruby 1.rb timeout 0.0ms 325.3MB 4853ms 133ms ruby 3.4.3
ruby 1.rb timeout 0.0ms 327.0MB 4860ms 130ms ruby/yjit 3.4.3
ruby 1.rb timeout 0.0ms 731.8MB 5057ms 157ms truffleruby 24.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 63ms 3.5ms 15.7MB 53ms 0ms ldc2 1.40.1
d 1.d 75ms 2.1ms 25.5MB 63ms 0ms dmd 2.111.0
d 2.d 208ms 1.4ms 17.7MB 200ms 0ms ldc2 1.40.1
d 2.d 292ms 0.9ms 19.9MB 280ms 0ms dmd 2.111.0
ruby 1-m.rb 1692ms 8.3ms 475.4MB 2483ms 163ms truffleruby 24.2.1
ruby 1.rb 3437ms 77ms 131.8MB 3337ms 83ms ruby/yjit 3.4.3
ruby 1.rb 4403ms 32ms 131.0MB 4307ms 80ms ruby 3.4.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2424ms 9.2ms 8.2MB 2347ms 457ms ldc2 1.40.1
d 1.d 4427ms 6.8ms 10.4MB 4383ms 480ms dmd 2.111.0
ruby 1.rb timeout 0.0ms 130.2MB 4847ms 140ms ruby 3.4.3
ruby 1.rb timeout 0.0ms 130.7MB 4873ms 113ms ruby/yjit 3.4.3
ruby 1.rb timeout 0.0ms 461.2MB 13320ms 417ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 583ms 2.0ms 8.0MB 550ms 120ms ldc2 1.40.1
d 1.d 1050ms 5.7ms 10.4MB 1037ms 110ms dmd 2.111.0
ruby 1-m.rb 1612ms 177ms 390.8MB 4260ms 207ms truffleruby 24.2.1
ruby 1.rb 1803ms 20ms 131.0MB 1673ms 117ms ruby/yjit 3.4.3
ruby 1.rb 1805ms 5.0ms 130.1MB 1683ms 103ms ruby 3.4.3

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 577ms 8.3ms 170.0MB 757ms 23ms ldc2 1.40.1
d 3.d 1199ms 3.1ms 175.2MB 1383ms 27ms dmd 2.111.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 62ms 0.6ms 26.0MB 70ms 0ms ldc2 1.40.1
d 3.d 128ms 3.2ms 31.4MB 137ms 7ms dmd 2.111.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 4796ms 12ms 4.1MB 4743ms 397ms ldc2 1.40.1
d 1.d timeout 0.0ms 6.6MB 4980ms 280ms dmd 2.111.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1201ms 3.7ms 4.0MB 1177ms 100ms ldc2 1.40.1
d 1.d 2057ms 8.9ms 6.5MB 2023ms 133ms dmd 2.111.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3595ms 8.5ms 4.0MB 3583ms 0ms ldc2 1.40.1
d 1.d 3629ms 18ms 6.3MB 3620ms 0ms dmd 2.111.0
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 3ms ruby 3.4.3
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.3
ruby 4.rb timeout 0.0ms 412.4MB 5180ms 223ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 901ms 1.9ms 3.5MB 890ms 0ms ldc2 1.40.1
d 1.d 923ms 7.1ms 5.3MB 913ms 0ms dmd 2.111.0
ruby 4.rb 4838ms 9.1ms 424.1MB 5130ms 203ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 7ms ruby 3.4.3
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.3

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 228ms 0.9ms 3.1MB 220ms 0ms ldc2 1.40.1
d 1.d 233ms 1.4ms 4.9MB 220ms 0ms dmd 2.111.0
ruby 4.rb 1417ms 19ms 373.9MB 1763ms 130ms truffleruby 24.2.1
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 7ms ruby 3.4.3
ruby 4.rb timeout 0.0ms 13.8MB 4980ms 3ms ruby/yjit 3.4.3